Browsing Mechanical and Mechatronics Engineering by Type "Doctoral Thesis"
Now showing items 21-40 of 423
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Analysis and Design of a Stationary Magnetic Abrasive Finishing System
(University of Waterloo, 2018-08-31)Magnetic Abrasive Finishing (MAF) is a very effective technique used in precision surface finishing and polishing processes. It is defined as one of the advanced and nonconventional finishing processes, which is used to ... -
Analysis and Modeling of Uncooled Microbolometers with Tunable Thermal Conductance
(University of Waterloo, 2009-05-20)Uncooled microbolometers have attracted significant interest due to their small size, low cost and low power consumption. As the application range of microbolometers broadens, increasing the dynamic range becomes one of ... -
Analysis of Fire Performance, Smoke Development and Combustion Gases from Flame Retarded Rigid Polyurethane Foams
(University of Waterloo, 2014-05-16)Rigid polyurethane foam is a polymeric material which is widely used for thermal insulation in building construction and other applications. Given recent emphasis on energy conservation and efficiency, there has been ... -
Analysis of Iron Precursor Assisted Emission Reduction in Counterflow Methane Diffusion Flame
(University of Waterloo, 2017-08-30)Addition of metallic precursors to flames draws interest due to their potential ability to catalyze hydrocarbon combustion by means of supplemental gas phase and surface reactions. A counterflow flame burner is utilized ... -
An Analysis of the Factors Influencing Electrochemical Measurements of the Condition of Reinforcing Steel in Concrete Structures
(University of Waterloo, 2007-07-16)Electrochemical assessment of the condition of the steel reinforced concrete structures is being carried out increasingly and more regularly, both in the laboratory and in the field. It is important to have enough information ... -
Anti-Idling Systems for Service Vehicles with A/C-R Units: Modeling, Holistic Control, and Experiments
(University of Waterloo, 2016-09-20)As people have begun to pay more attention to energy conservation and emission reduction in recent years, anti-idling has become a growing concern for automobile engineers due to the low efficiency and high emissions ... -
Application of Game Theory to Interactive Lane Change Decision Making for Autonomous Driving
(University of Waterloo, 2022-12-21)The decision-making and motion planning play a critical role in the autonomous driving by connecting the perception to the vehicle control. It aims at generating available paths in the specific driving environment considering ... -
Applications of Reflectometry Towards the Development of MEMS Gas Sensors
(University of Waterloo, 2021-05-27)Reflectometry or reflectance spectroscopy is a relatively simple characterization technique based on the analysis of reflected light from a surface. Herein, reflectometry is used to attain significant insights towards the ... -
Automated Micromanipulation of Micro Objects
(University of Waterloo, 2011-08-26)In recent years, research efforts in the development of Micro Electro Mechanical Systems, (MEMS) including microactuators and micromanipulators, have attracted a great deal of attention. The development of microfabrication ... -
Bayesian inference for source determination in the atmospheric environment
(University of Waterloo, 2009-04-17)In the event of a hazardous release (chemical, biological, or radiological) in an urban environment, monitoring agencies must have the tools to locate and characterize the source of the emission in order to respond and ... -
Bayesian Methods for Gas-Phase Tomography
(University of Waterloo, 2018-09-10)Gas-phase tomography refers to a set of techniques that determine the 2D or 3D distribution of a target species in a jet, plume, or flame using measurements of light, made around the boundary of a flow area. Reconstructed ... -
Bilateral Macro-Micro Teleoperation Using A Magnetic Actuation Mechanism
(University of Waterloo, 2013-09-25)In recent years, there has been increasing interest in the advancement of microrobotic systems in micro-engineering, micro-fabrication, biological research and biomedical applications. Untethered magnetic-based microrobotic ... -
Breakup Process of Plane Liquid Sheets and Prediction of Initial Droplet Size and Velocity Distributions in Sprays
(University of Waterloo, 2001)Spray models are increasingly becoming the principal tools in the design and development of gas turbine combustors. Spray modeling requires a knowledge of the liquid atomization process, and the sizes and velocities of ... -
Catalyst Layers in Polymer Electrolyte Membrane Fuel Cells: Formation, Characterization and Performance
(University of Waterloo, 2019-01-25)The structure of the catalyst layers (CLs) has a decisive impact on the performance, durability, and cost of polymer electrolyte membrane (PEM) fuel cells – these are the main technical challenges to the commercialization ... -
Chalcogenide and metal-oxide memristive devices for advanced neuromorphic computing
(University of Waterloo, 2023-07-27)Energy-intensive artificial intelligence (AI) is prevailing and changing the world, which requires energy-efficient computing technology. However, traditional AI driven by von Neumann computing systems suffers from the ... -
Characterization and microstructure-based modeling of spot weld failure in hot stamped steel
(University of Waterloo, 2022-02-08)The performance of automotive safety components in a crash event depends on the mechanical properties of the sheet metal as well as the failure behavior of the spot welds that are used for sheet metal assembly. Unlike many ... -
Characterization and Modeling of Forged ZK60 Mg Alloys under Quasi-static and Fatigue Loadings
(University of Waterloo, 2020-01-24)In response to impending changes to the environmental regulations on the vehicles’ gas consumption rate, the transportation sector is motivated toward the widespread adoption of lightweight materials in the manufacturing ... -
Characterization and Modeling of Sheared Edge Failure in Advanced High Strength Steel
(University of Waterloo, 2018-03-07)Edge failure is one of the major problems associated with forming of advanced high strength steels (AHSS) such as dual-phase (DP) steels. The development of ferritic-bainitic steels such as complex-phase (CP) steels have ... -
Characterization and Modelling of Additively Manufactured Hastelloy X Parts under Quasi-Static and Cyclic Loading
(University of Waterloo, 2021-04-28)Laser powder-bed fusion (LPBF) is one of the main additive manufacturing (AM) methods, which has been proven to produce complex metallic parts with fine features. Understanding the correlation of process parameters to the ... -
Characterization and Simulation of the Microstructure of Additively Manufactured Hastelloy X Parts with Columnar Grain Structure
(University of Waterloo, 2021-05-21)One of the well-known AM techniques is laser powder-bed fusion (LPBF), which enables engineers to benefit from the concept of “design freedom” while designing complex geometries compared to other conventional methods. This ...